Home / 39,799.78-54,871.64-28,888.10

Finding the Fourth Proportional to 39,799.78, 54,871.64 and 28,888.10

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Solution

The fourth proportional to 39,799.78, 54,871.64 and 28,888.10 is: 39,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.78 : 54,871.64 = 28,888.10 : x
  2. Step 2: Convert to fraction form
    39,799.78/54,871.64 = 28,888.10/x
  3. Step 3: Cross multiply
    39,799.78x = 54,871.64 × 28,888.10
  4. Step 4: Simplify right side
    39,799.78x = 1,585,137,423.48
  5. Step 5: Solve for x
    x = 1,585,137,423.48/39,799.78
  6. Step 6: Final answer
    x = 39,827.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.